Strainer for percolators



Jan. l2, 1937. o. MANDERSON STRAINER Fon PERcoLAToRs Filed Feb. 21, 1935Patented Jan.y 12;. 1937' S'mA'INEB -Foa rEaooLA'roas Oscar M. Anderson,New Britain, Conn., assigner to Landers, Frary & Clark, New Britain,Conn., a corporation ofP Connecticut Application February 21, 1935, semiNo. 1,516

3 Claims. This invention relates generally to percolators of the type inwhich the steam created in the kettle forces the heated water up throughaV stem or spout into an upperv receptacle in which the 5 coffeematerial is supported'on a strainer, and

has particular reference vto the construction' of the strainer.

The aim of the invention is to provide an improved strainer having.various features of novelty and advantage and which is characterized byits extreme simplicity in construction, the economy with which it maybe, manufactured; the ease and facility with lwhich it may be positionedwithin and removedfrom the coffee receptacle, and which is very sanitaryin that it is devoid of angles ororevices, and may be very easily and.readilycleaned v Other objects will bein part obvious, and in partpointed out more in detail hereinafter. e v

The invention accordingly consists in the features lof construction,combination of elements andarrangement of parts which will beexemplified in the construction' hereinafter lset forth, and the scopeof thev application 'of which 25 will. be indicated in the appendedclaims* In th accompanying drawing wherein I have shown, forillustrative purposes, one embodiment which the. present invention maytake,

Fig. 1 is a fragmentary detail of a percolator lncross'section.illustrating my improved strainerY in`position; I f

Fig. 3 is an enlarged view ofthe strainer holder: and n v 1 Fig. 3 is atop plan view of the strainer holder. Referring to the drawing. indetail, I` have shown my-improved arrangement incorporated in apercolator of well known type having a kettle or liquid receptacle iiipreferably formed of and adapted to be supported on the hot plate orover any suitable source of heat. -Sup ported by the receptacle It is acoffee receptacle which is preferably in the form of a glass funnelhaving abowl portion I l and astem or spout l2, the latterproiectingdown into the vessel Ill. The stem l2 is seated within a rubber gasketfor seal le which is supported within. thje neck 'of the vessel iti. l v

The strainer includes a ltering element le preferably in the form of afabric cap and a holder for the element. Inaccordance with the presentinvention, the holder is formed from a single length of wire, and has ataperednor dome- 'shaped body portionA 20 comprising a spiral, coil withits convolutions spaced apart and of successively smaller diameter.Extending from the inner end of the coiled portion of the holder andprojecting downwardly therethrough is a rod or stem 2| which, adjacentits lower end, is bent to form a hook 22. The extreme lower end of therod projects below the hook and, if desired, may be formed with an eye23.

'To assemble the parts, 'the filtering cloth or --cap 'lil is placedabout the body portion 20 of the holder, and the drawstring 24 is pulledtight so as to place the body portion under some compression whereby thefabric will be held more or less taut. The ends of the string arewrapped u -about the`rod 2l. The holder is then inserted bowl I l aboutthe throat of the stem I2, and the. 4lower end of the rod 2| extendingslightly below Itl will be seen from the foregoing description, taken inconnection with the accompanying drawing, that'my Vimproved strainerholder is extremely simple inv-construction, and since it may be formedfrom' asinlgle piece of wire by operations which may be economicallycarried out, the holder maybe produced at relatively low cost. The coilfor supporting the lterlng Ulm vlower end of the stem' I2 and thendrawing the strainer through the upper vend of the bowl il;

element of fabric alsoserves as a spring for.

when the hook 22 is engaged with the lower end of the stem I2, thuseliminating the necessity of additional spring fingers, coiled springs,or the foreign matter may collect ,an'd all surfaces of the'holder beingreadily wcessible.

` resiliently yet firmly holding the holder in place `like. The holdergmay be very` easily cleaned, there being no crevices or corners inwhich,

As many changes could be made in the above of progressively smallersize, said convolutions rising in the general form ot a dome whichmerges at its apex into a substantially concentric straight downwardprojection of said wire, a illtering fabric member supported by .andencasing the `domed portion, and a hooked portion at the lower end ofsaid wire whereby the assembly may be removably secured in lteringposition.

2. A strainer for percolators oi' the character described and comprisinga filtering fabric hav ing a drawstring, and a holder therefor andhaving a dome-shaped body portion about which said ltering fabric ispositioned and a stem. said holder being formed oi a length of wire oneend of which is spirally coiled to i'orm said body portion and the otherend of which projects from the inner end of the coiled portion andthrough the same so as to form a stem. the lower end of said stembeingprovided with a hooked portion adapted to be engaged with the lowerend of the stem of the coiee receptacle in which l the strainer ispositioned.

3. In avpercolator, a funnel-shaped coiee receptacle having a bowl and astem, a ltering fabric, and a holder for said fabric formed from alength of wire and having a spirally wound body portion seated withinthe bowl about the throat of said stem, and a rod portion extending fromthe inner end of said coiled portion and through said stem, said rodportion having a hook adjacent its lower end adapted to be engaged withthe lower end of said stem, said rod portion being of such length thatwhen the hooked portion is engaged with said stem said body portion is20 placed under compression whereby the holder is securely held inplace.

OSCAR M. ANDERSON.

